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Repeat scan criteria
NICE guideline
Presenting with an embryo with no heart activity with CRL<7mm, and still no embryo heart beat visible after 1 week (7 days)
100% specificity
Prospective observational multicentre study.Preisler et all. BMJ 2015;101hh1579 | doi1 02.00;6/bmj.hh1579
Prospective study defining safe criteria to diagnose miscarriage: suggested additional new criteria
Repeat scan criteria:
Presenting with no visible embryo (with or without visible yolk sac) with mean gestational sac diameter ≥12 mm and returning after at least seven days: no embryo with embryo heart activity visible
Presenting without an embryo (with or without visible yolk sac) with mean gestational sac diameter <12 mm and returning after at least 14 days: no embryo heart activity and mean gestational sac diameter has not doubled
Presenting with an embryo (irrespective of crown‐rump length) without heart activity, and still no heart activity visible after at least seven days
Prospective observational multicentre study.Preisler et all. BMJ 2015;101hh1579 | doi1 02.00;6/bmj.hh1579
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PRECONGRESS COURSE 05 I BARCELONA, SPAIN – 1 JULY 2018 105